. >> we have the whole man here, you're the senior science journalist for the "huffington post." okay, we we could put walls up, but shouldn't we go to the source of the problem fossil fuels. >> you have to mitigate the effects because in some respects it is a little too late to reverse this problem. but you also want to work as hard as you can to stop it from getting any worse. we can talk about this kind of two degree celsius problem, and we can get to the technical stuff. but the truth is it's already gotten so bad and even if we stopped putting emissions in the atmosphere it will still get worse for many, many years. >> cenk: let's talk about that for a minute. we have thisthere is magical reverse when we need it. it seems that that would be the time. >> they're saying, the scientists will do all that. >> cenk: seriously is there a way to reverse it. >> to reverse climate change? >> cenk: it just times. >> it a function of making sure it doesn't get worse. we are we at that level. >> cenk: that was a hard-hitting ad against mitt romney against climate change. should democrats